diff --git a/include/wx/private/jsscriptwrapper.h b/include/wx/private/jsscriptwrapper.h
index 7fd036302a..4bd061197e 100644
--- a/include/wx/private/jsscriptwrapper.h
+++ b/include/wx/private/jsscriptwrapper.h
@@ -38,7 +38,7 @@ public:
 
         // Adds one escape level if there is a single quote, double quotes or
         // escape characters
-        wxRegEx escapeDoubleQuotes("(\\\\*)(['\"\n\r\v\t\b\f])");
+        wxRegEx escapeDoubleQuotes("(\\\\*)([\\'\"\n\r\v\t\b\f])");
         escapeDoubleQuotes.Replace(&m_escapedCode,"\\1\\1\\\\\\2");
     }
 
diff --git a/tests/controls/webtest.cpp b/tests/controls/webtest.cpp
index b6742e663b..a71db74ef7 100644
--- a/tests/controls/webtest.cpp
+++ b/tests/controls/webtest.cpp
@@ -323,6 +323,9 @@ void WebTestCase::RunScript()
     CPPUNIT_ASSERT(m_browser->RunScript("function f(a){return a;}f('Hello World!');", &result));
     CPPUNIT_ASSERT_EQUAL(_("Hello World!"), result);
 
+    CPPUNIT_ASSERT(m_browser->RunScript("function f(a){return a;}f('a\\\'aa\\n\\rb\vb\\tb\\\\ccc\\\"ddd\\b\\fx');", &result));
+    CPPUNIT_ASSERT_EQUAL(_("a\'aa\n\rb\vb\tb\\ccc\"ddd\b\fx"), result);
+
     CPPUNIT_ASSERT(m_browser->RunScript("function f(a){return a;}f(123);", &result));
     CPPUNIT_ASSERT_EQUAL(123, wxAtoi(result));